初中阶段是我们一生中学习的“黄金时期”。精品学习网中考频道为大家准备了中考英语考点的相关内容，欢迎阅读与选择!

连词主要有：when as while before after until as soon as since等

(1)区别when, as, while的用法

①.when"当......时候"引导的时间状语从句，其动词既可以是延续性动作的动词，也可以是瞬间性动作的动词,如：

_________ the students heard the teacher's footsteps, they all stopped talking.

当学生们听到老师的脚步声时，他们都停止了讲话。(从句动作发生在前)

② as"当.......时候"或"一边.......一边"引导的时间状语从句其动词的动作是延续性的，而且侧重表示主句和从句的动作并相发生：

We were having breakfast __________ she was combing her hair.

她梳头时我们在吃早饭。

③ while表示"在某一段时间里"或"在……期间"，其所引导的从句的动作是延续性的，并侧重表示和主句的动作同时发生。如：

I can learn ________ I work.

我可以边工作边学习。

用when, as, while填空：

________ you came in, I was talking with a few boys.

It started to rain __________ we were playing outdoors.

They talked _________ they walked down the river.

__________ it was raining, the students were playing basketball.

Her brother watched TV__________ he ate supper.

(4) before引导的时间状语从句，指时间上的"在……之前"

I'll be back _______________________________________________.

你离开之前我就会回来。

(5) as soon as表示"一……就"，做题要注意主将从现

As soon as we __________ (get) there, he ___________ (tell) us the news.

我们一到那，他就会告诉我们那个消息。

(7) since引导的时间状语从句，从句的谓语动词通常为一般过去时，主句的谓语动词通常为现在完成时

We __________ never __________ (meet) since we ___________ (graduate) from the college.

大学毕业后我们就再没见过面。

(8) till/until引导的时间状语从句 till和until同义，作"直到……时(为止)"解，till多用于非正式文体，until多用于句首;not … until通常与after进行转换。如：

I won't go with you until(till) I finished my homework.

=____________________________________________________________________.

等我做完作业我才和你一起去。

欢迎大家去阅读由小编为大家提供的中考英语考点大家好好去品味了吗?希望能够帮助到大家，加油哦!

相关推荐：

2016年中考英语二模考点分析：过去将来时

中考英语二模考点辅导：过去完成时